Precise 21-Bit Magnetic Encoder Module

This MT6835-based magnetic encoder module delivers absolute angle measurement across 0–360° with 21-bit resolution via SPI interface. It measures 22.5 mm × 22.5 mm × 8.5 mm and weighs approximately 5 g, built on a rigid PCB substrate using surface-mount components. The encoder operates from 3.3 V to 5.0 V DC and functions reliably in environments ranging from −40 °C to +125 °C. It supports both high-speed SPI communication (up to 16 MHz) and incremental ABZ/UVW outputs, enabling flexible integration into servo, motor control, or robotics systems. The module includes a pre-matched magnet for immediate mounting and requires no external mechanical coupling. The encoder features on-the-fly zero-point programming — up to five times in field use — and achieves typical linearity deviation of ±0.02° after self-calibration. Its ultra-fast system response time (2–10 µs) supports real-time closed-loop control, and it is rated for continuous rotation up to 120,000 RPM — making it suitable for high-dynamic BLDC and PMSM applications. Designed for industrial-grade reliability, the module integrates seamlessly with brushless motor feedback systems where precision, speed, and thermal resilience are critical — such as in automated manufacturing, medical robotics, or high-performance drone gimbals.